Watcher
01
観察者, 観客
a close observer; someone who looks at something (such as an exhibition of some kind)
02
見張り, 監視者
a guard who keeps watch
03
見守る人, 監視者
a person who keeps a devotional vigil by a sick bed or by a dead body
観察者, 観客
見張り, 監視者
見守る人, 監視者
